Patents by Inventor Kyung Su HA
Kyung Su HA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11360356Abstract: A liquid crystal display device includes a first substrate and a second substrate facing each other; a thin film transistor in a pixel region on the first substrate; a first electrode on the thin film transistor; and a second electrode on the first electrode and connected to the thin film transistor, wherein the second electrode includes a first rib electrode and a second rib electrode, wherein the first rib electrode and the second rib electrode are connected by a connection electrode, wherein a vertical opening is between the first rib electrode and the second rib electrode and along a first direction, and wherein the connection electrode includes a hole at a region adjacent to the vertical opening.Type: GrantFiled: July 3, 2020Date of Patent: June 14, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Won-Taeck Kim, Kyung-Su Ha
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Patent number: 11156865Abstract: A liquid crystal display device includes: a substrate; a thin film transistor in a pixel region over the substrate; a common electrode over the thin film transistor; a pixel electrode connected to the thin film transistor; and a liquid crystal layer including a plurality of liquid crystal capsules over the common electrode and the pixel electrode, wherein each of the plurality of liquid crystal capsules includes a shell and a core having a plurality of liquid crystal molecules therein, and wherein a gap distance between the liquid crystal molecules in adjacent liquid crystal capsules is equal to or greater than 20 nm and equal to or smaller than 0.3 times of a capsule diameter of the adjacent liquid crystal capsules.Type: GrantFiled: December 4, 2020Date of Patent: October 26, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Kyeong-Jin Kim, Kyung-Su Ha, Eun-Woo Lee
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Publication number: 20210088816Abstract: A liquid crystal display device includes: a substrate; a thin film transistor in a pixel region over the substrate; a common electrode over the thin film transistor; a pixel electrode connected to the thin film transistor; and a liquid crystal layer including a plurality of liquid crystal capsules over the common electrode and the pixel electrode, wherein each of the plurality of liquid crystal capsules includes a shell and a core having a plurality of liquid crystal molecules therein, and wherein a gap distance between the liquid crystal molecules in adjacent liquid crystal capsules is equal to or greater than 20 nm and equal to or smaller than 0.3 times of a capsule diameter of the adjacent liquid crystal capsules.Type: ApplicationFiled: December 4, 2020Publication date: March 25, 2021Applicant: LG DISPLAY CO., LTD.Inventors: Kyeong-Jin KIM, Kyung-Su HA, Eun-Woo LEE
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Patent number: 10895772Abstract: A liquid crystal display device includes: a substrate; a thin film transistor in a pixel region over the substrate; a common electrode over the thin film transistor; a pixel electrode connected to the thin film transistor; and a liquid crystal layer including a plurality of liquid crystal capsules over the common electrode and the pixel electrode, wherein each of the plurality of liquid crystal capsules includes a shell and a core having a plurality of liquid crystal molecules therein, and wherein a gap distance between the liquid crystal molecules in adjacent liquid crystal capsules is equal to or greater than 20 nm and equal to or smaller than 0.3 times of a capsule diameter of the adjacent liquid crystal capsules.Type: GrantFiled: April 28, 2017Date of Patent: January 19, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Kyeong-Jin Kim, Kyung-Su Ha, Eun-Woo Lee
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Publication number: 20210011345Abstract: A liquid crystal display device includes a first substrate and a second substrate facing each other; a thin film transistor in a pixel region on the first substrate; a first electrode on the thin film transistor; and a second electrode on the first electrode and connected to the thin film transistor, wherein the second electrode includes a first rib electrode and a second rib electrode, wherein the first rib electrode and the second rib electrode are connected by a connection electrode, wherein a vertical opening is between the first rib electrode and the second rib electrode and along a first direction, and wherein the connection electrode includes a hole at a region adjacent to the vertical opening.Type: ApplicationFiled: July 3, 2020Publication date: January 14, 2021Applicant: LG Display Co., Ltd.Inventors: Won-Taeck KIM, Kyung-Su HA
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Patent number: 10459297Abstract: A liquid crystal display device includes a substrate; a pixel electrode and a common electrode in a pixel region on the substrate and spaced apart from each other; and a liquid crystal layer on the pixel electrode and the common electrode and including a first liquid crystal capsule and a second liquid crystal capsule, wherein the first liquid crystal capsule includes first liquid crystal molecules having positive dielectric constant anisotropy and the second liquid crystal capsule includes second liquid crystal molecules having negative dielectric constant anisotropy.Type: GrantFiled: September 20, 2017Date of Patent: October 29, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Kyung-Su Ha, Sang-Wook Lee, Won-Taeck Kim
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Publication number: 20190155074Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.Type: ApplicationFiled: January 4, 2019Publication date: May 23, 2019Inventors: Kyeong-Jin Kim, Jung-Im Hwang, Ji-Na Jeon, Kyung-Su Ha, Min-Geun Choi
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Patent number: 10222644Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.Type: GrantFiled: July 10, 2017Date of Patent: March 5, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Kyeong-Jin Kim, Jung-Im Hwang, Ji-Na Jeon, Kyung-Su Ha, Min-Geun Choi
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Patent number: 10168566Abstract: Discussed is a nanocapsule liquid crystal display device. The nanocapsule liquid crystal display device according to an embodiment includes a substrate; a pixel electrode and a common electrode on the substrate; a first polarization plate disposed under the substrate and including a first polarization layer; and a second polarization plate contacting at least one of the pixel electrode and the common electrode and including a second polarization layer and a nanocapsule liquid crystal layer between the second polarization layer and the substrate.Type: GrantFiled: August 25, 2015Date of Patent: January 1, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Ji-Na Jeon, Kyeong-Jin Kim, Jung-Im Hwang, Min-Geon Choi, Kyung-Su Ha
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Patent number: 10162206Abstract: Provided herewith is a liquid crystal display device comprising a substrate; first and second electrodes on a first surface of the substrate, the first and second electrodes being spaced apart from each other; a liquid crystal capsule layer on the first and second electrodes; and a dielectric layer on the liquid crystal capsule layer. In this liquid crystal display device the dielectric constant of the dielectric layer is lower than the dielectric constant of the liquid crystal capsule layer.Type: GrantFiled: November 29, 2016Date of Patent: December 25, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Min-Geon Choi, Kyeong-Jin Kim, Kyung-Su Ha
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Patent number: 10018867Abstract: A nano capsule liquid crystal layer and a liquid crystal display having the same are provided. The nano capsule liquid crystal layer includes a buffer layer and a plurality of nano capsules disposed in the buffer layer. An inside of each of the nano capsules includes liquid crystal molecules, and additives each having a center molecule and at least two first peripheral molecules connected to the center molecule and spaced apart from each other, and that are mixed with the liquid crystal molecules. The first peripheral molecules have a same phase as the liquid crystal molecule.Type: GrantFiled: November 28, 2016Date of Patent: July 10, 2018Assignee: LG Display Co., Ltd.Inventors: Kyung-Su Ha, Kyeong-Jin Kim, Ji-Na Jeon
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Patent number: 9971184Abstract: Discussed is a liquid crystal display device that includes a substrate having a pixel electrode and a common electrode formed thereon, a first polarizing plate on a bottom surface of the substrate, and having a polarizing axis of a first direction, a nanocapsule liquid crystal layer on the pixel electrode and the common electrode, and including a buffer layer and nanocapsules, each nanocapsules being filled with liquid crystal molecules, being oil-soluble, and being dispersed in the buffer layer, and a second polarizing plate on the nanocapsule liquid crystal layer, and having a polarizing axis of a second direction perpendicular to the first direction.Type: GrantFiled: December 22, 2015Date of Patent: May 15, 2018Assignees: LG DISPLAY CO., LTD., IMAGELAB CO., LTD.Inventors: Kyeong-Jin Kim, Min-Geun Choi, Kyung-Su Ha, Hyun-Ha Hwang, Seung-Gon Kang
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Patent number: 9964794Abstract: Discussed is a liquid crystal display device according to an embodiment including a substrate including a unit pixel having first to third sub-pixels arranged in a delta structure; and a first electrode and a second electrode in each of the first to third sub-pixels, each of the first and second electrodes including a first bar and a plurality of second bars branching off from the first bar, the first bar of the first electrode and the first bar of the second electrode facing each other and being parallel with each other, the second bars of the first electrode and the second bars of the second electrode interleaved with each other, wherein the first and second bars of the third sub-pixel makes first and second angles, respectively, relative to a first polarization axis.Type: GrantFiled: November 29, 2016Date of Patent: May 8, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Kyung-Su Ha, Ji-Na Jeon, Eun-Woo Lee
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Publication number: 20180120608Abstract: A liquid crystal display device includes a substrate; a pixel electrode and a common electrode in a pixel region on the substrate and spaced apart from each other; and a liquid crystal layer on the pixel electrode and the common electrode and including a first liquid crystal capsule and a second liquid crystal capsule, wherein the first liquid crystal capsule includes first liquid crystal molecules having positive dielectric constant anisotropy and the second liquid crystal capsule includes second liquid crystal molecules having negative dielectric constant anisotropy.Type: ApplicationFiled: September 20, 2017Publication date: May 3, 2018Applicant: LG DISPLAY CO., LTD.Inventors: Kyung-Su HA, Sang-Wook LEE, Won-Taeck KIM
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Publication number: 20170315388Abstract: A liquid crystal display device includes: a substrate; a thin film transistor in a pixel region over the substrate; a common electrode over the thin film transistor; a pixel electrode connected to the thin film transistor; and a liquid crystal layer including a plurality of liquid crystal capsules over the common electrode and the pixel electrode, wherein each of the plurality of liquid crystal capsules includes a shell and a core having a plurality of liquid crystal molecules therein, and wherein a gap distance between the liquid crystal molecules in adjacent liquid crystal capsules is equal to or greater than 20 nm and equal to or smaller than 0.3 times of a capsule diameter of the adjacent liquid crystal capsules.Type: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Applicant: LG DISPLAY CO., LTD.Inventors: Kyeong-Jin KIM, Kyung-Su HA, Eun-Woo LEE
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Publication number: 20170307917Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.Type: ApplicationFiled: July 10, 2017Publication date: October 26, 2017Inventors: Kyeong-Jin KIM, Jung-Im HWANG, Ji-Na JEON, Kyung-Su HA, Min-Geun CHOI
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Patent number: 9759943Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.Type: GrantFiled: November 23, 2016Date of Patent: September 12, 2017Assignee: LG DISPLAY CO, LTD.Inventors: Kyeong-Jin Kim, Jung-Im Hwang, Ji-Na Jeon, Kyung-Su Ha, Min-Geun Choi
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Publication number: 20170192265Abstract: A nano capsule liquid crystal layer and a liquid crystal display having the same are provided. The nano capsule liquid crystal layer includes a buffer layer and a plurality of nano capsules disposed in the buffer layer. An inside of each of the nano capsules includes liquid crystal molecules, and additives each having a center molecule and at least two first peripheral molecules connected to the center molecule and spaced apart from each other, and that are mixed with the liquid crystal molecules. The first peripheral molecules have a same phase as the liquid crystal molecule.Type: ApplicationFiled: November 28, 2016Publication date: July 6, 2017Applicant: LG Display Co., Ltd.Inventors: Kyung-Su HA, Kyeong-Jin KIM, Ji-Na JEON
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Publication number: 20170153471Abstract: Discussed is a liquid crystal display device according to an embodiment including a substrate including a unit pixel having first to third sub-pixels arranged in a delta structure; and a first electrode and a second electrode in each of the first to third sub-pixels, each of the first and second electrodes including a first bar and a plurality of second bars branching off from the first bar, the first bar of the first electrode and the first bar of the second electrode facing each other and being parallel with each other, the second bars of the first electrode and the second bars of the second electrode interleaved with each other, wherein the first and second bars of the third sub-pixel makes first and second angles, respectively, relative to a first polarization axis.Type: ApplicationFiled: November 29, 2016Publication date: June 1, 2017Applicant: LG DISPLAY CO., LTD.Inventors: Kyung-Su HA, Ji-Na JEON, Eun-Woo LEE
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Publication number: 20170153489Abstract: Provided herewith is a liquid crystal display device comprising a substrate; first and second electrodes on a first surface of the substrate, the first and second electrodes being spaced apart from each other; a liquid crystal capsule layer on the first and second electrodes; and a dielectric layer on the liquid crystal capsule layer. In this liquid crystal display device the dielectric constant of the dielectric layer is lower than the dielectric constant of the liquid crystal capsule layer.Type: ApplicationFiled: November 29, 2016Publication date: June 1, 2017Inventors: Min-Geon Choi, Kyeong-Jin Kim, Kyung-Su Ha